45 Super Load Data

[Taco1911]

I am looking at running Missouri bullet company 250gr pin buster bullets. I'm running in a 6 inch ported 1911 for bowling pin pin shoots. Does anyone have any load data out there so I have a starting point.

[Unclenick]

No, but a good estimate can be made if you can find out from MBC how deep the bullet seats. They publish that it has an overall length of 0.661," but the question is where the top edge of the crimp groove is. Whether they measure it from the nose or from the base doesn't matter.

Do you have a powder in mind?

[Taco1911]

I'm open to suggestions I was looking at longshot, power pistol ,hs6, true blue. I know with comped guns the more the gas volume the less muzzle flip

[Unclenick]

Loads for 230 grain jacketed bullets are available. If you call MBC and get the bullet info, we can use an interior ballistics program to determine a load ratio to those bullets, and get probable load data from that. It's not foolproof, but is way better than a guess.

[Taco1911]

I called them dimension is .384".

[Shadow9mm]

In my experience with 9mm and 44spl power pistol and lead bullets do not mix well.

[1972RedNeck]

In my experience with 9mm and 44spl power pistol and lead bullets do not mix well.

What happens? Just poor accuracy or bad leading?

[AlaskaMike]

I'm curious what bad experiences you've had with Power Pistol and cast bullets as well.

Most of the loads I shoot in .38, .357, 9mm, 10mm, .44 special, 44 mag, .45 auto and .45 Colt all use cast bullets. My best loads for each of those calibers, when using "light for caliber" bullets all use Power Pistol.

Of course some guns just hate a specific combination, and there's not much to do but change some of the variables and see what the gun likes.

[Unclenick]

CAUTION: The following post (or a page linked to) includes or discusses loading data not covered by currently published sources of tested data for this cartridge (QuickLOAD or Gordon's Reloading Tool data is not professionally tested). USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assumes any liability for any damage or injury resulting from the use of this information.

Originally Posted by Taco1911

I called them dimension is .384".

I think they messed up. If it were that long from the base to the top of the crimp groove, you couldn't seat the bullet to the crimp groove in a 45 Auto case. 45 Auto case walls start to thicken below around 0.35 inches so that anything bullet diameter pushed that deeply starts to bulge the case so it won't chamber. The bullet does have a short bevel base, which will let it go an extra hundredth of an inch or so deeper than 0.35, but 0.034" extra would be asking for trouble. It would also give you a very short 1.17" COL, which would press the powder pretty tight.

I took a look at their photo of the plain cast bullets, and it has one lying nearly horizontal, so it looked good for getting a ratio, which I then scaled to 0.661" in my CAD program. It suggests the base-to-crimp groove dimension is about 0.357". I have some glare and pixelation error possible, so I am going to guess the nose is an even 0.300" from tip to crimp groove, and the base to groove is then 0.361", which is about as close as this kind of measuring gets.

The photo is derivative of the Missouri Bullet photo, but for the educational purpose, falls under fair use, I think.



If I run the Hodgdon HS6 load for the Hornady flat nose bullet shown with its maximum charge of 9 grains of HS6, then set it up for the MB bullet using my dimensions, I get the same pressure at a maximum load of 8.2 grains of HS6 so that the starting load would be 7.3 grains.

[Taco1911]

I ordered a sample of 100 coated yesterday so I can take pictures when they arrive next week THANK YOU VERY MUCH FOR YOUR HELP SO FAR!!!!!!

[Taco1911]

Duplicate post because I suck at forums

[Taco1911]

Okay so the distance from the base of the bullet to the top of the crimp groove is .360. My overall case length is 1.200. I believe I'm sticking roughly point .356 in the case

[44 AMP]

My overall case length is 1.200.

Length of the empty brass, base to case mouth is 1.200" ???

What case are you using and calling it".45 Super"???

Max listed case length for the .45 Win Mag is 1.198"
Max length for the .45 Super case is the same as the .45ACP case, .898".
Maximum length for the .45 acp loaded round (COAL or COL) is 1.275"
This is Cartridge over all length, from case base to bullet tip.

1.200" long brass will not run in a standard 1911. It will run in an LAR Grizzly, but the Grizzly is a stretched frame 1911 pattern gun.

[Taco1911]

I misspoke! Overall loaded length is 1.2. I am using starline 45 super brass